Adopting cage spring wiring technology, it can establish safe and reliable power and signal connections for 2-4 wires of 0.5-16mm2. The products are widely used in elevators, railways, ships, building automation, heavy equipment and industrial automation. The products are designed and manufactured in accordance with IEC60947, UL1059 and other relevant international standards, and have passed CQC, UL, VDE, TUV, CE, ROHS and other certifications.